There are actually two rivers in antarctica.
a. true
b. false

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

All of the following came out of china and were exchanged along the silk road, except a. papermaking b. block printing c. buddhism d. compasses select the best answer from the choices provided a b c d

Which region was the hearth for the largest number of agricultural animals such as pigs sheep and cows